“I would,” said Umbo. “And I saw the hiding place when you dug it up just now. So I’m betting that I did take it.”
Loaf rounded on him. “Hand it over, then, you little thief.”
“I didn’t hear you calling Rigg a thief for stealing that knife.”
“I called him a thief, all right!”
“That’s right, you did, but you didn’t grab him like you’re grabbing me and it hurts, so stop it! I don’t have the jewel because I didn’t take it!”
“You said you did.”
“I said I’m betting that I did, and I really should have said that I’m betting that I will.”
Loaf sighed and let go of him. “Why? What’s the point?”
“No point except that when you made your sarcastic remark about how somebody might have taken one, I thought, wouldn’t it be funny if my future self comes back, finds the bag of jewels, and takes out the biggest one. And the moment I thought that, I decided to do it if I got the chance. Now I know I’ll get the chance.”
“So you’re saying that when you learn how to travel in time, you’re going to use it to play stupid bratty tricks on your friends?”
“Now you’re getting it.”
“I ought to break your arm.”
“But I know you won’t.”
“Don’t be too sure.”
“Because my arm looked fine when my future self came to visit me. I also know I won’t drown, break my neck falling from a tree, or get my throat slit by a highwayman. I won’t die of some disease and I won’t get struck by lightning, and nobody will beat me to death with a stick.”
“I wouldn’t be too sure.”
“How can I be anything but sure? I came back and visited me and Rigg! I took the jewel out of the bag!”
“I wish I could go back and hide the bag in a different place,” said Loaf.
“Now you’re getting into the fun of it!” said Umbo. “Come on, people always make games out of everything. You did war as your real grownup work—but didn’t you play at war when you were little? I did. All of us did. So when I learn to go back in time, I’ll play with it! Giving warnings is one thing—that’s just showing up and talking. I know I’ll have to prove I can do whatever Rigg did or I’ll feel like I lost the game. He took the knife—from a stranger. I took—I will take—the jewel, but I’m only stealing from us so nobody else will miss it. See? A game.”
“I’m not having fun yet,” said Loaf.
“Because you’re old and tired and you know you’re going to die.” And this time, when Loaf made as if to hit him, Umbo dodged away. “See? We’re friends, and I’m teasing you like a friend. See? That’s what normal people do.”
“It’s not how normal children treat normal grownups,” said Loaf, and he did seem a little angry.
“But you’re not a normal grownup,” said Umbo. “When you hit me, you don’t really mean to hurt me.”
“Come a little closer here, Umbo, and we’ll see about that.”
“My father would have knocked me down and then kicked me a few times,” said Umbo.
“Too much work,” said Loaf. “You’re not worth it.”
“Friends!” said Umbo triumphantly.
“Well, friend,” said Loaf, “I have only one question for you. Where is that jewel now?”
That kept Umbo silent for quite a while. Was it possible that the jewel had simply left the world? Had it ceased to exist, and then would exist again, out of nowhere, out of nothing? It got Umbo to wondering what it meant to exist at all. When Rigg went back and took the knife, he stayed completely in the real present world—the only difference was that he could see the people from the past, and they could see him, but he was still here. The jewel, though. It was gone.
What about the knife? It was in the stranger’s possession, Rigg reached out and took it, and Umbo remembered seeing it come into existence in Rigg’s hand. The knife had a continuous existence. The problem was that it skipped centuries, maybe thousands of years. Jumped right over them. Because Rigg had reached back in time and moved it. That’s what happened to the jewel. It never ceased to exist, it just changed places. And eras. The knife had been carried by Rigg’s hand; the jewel would be carried by Umbo’s.